well, I think you have to have a program specifically for ripping DVDs to do that. I believe Magic DVD Ripper was mentioned? my aunt uses that to make copies of movies she buys for all us kids' Christmas presents. it works great.

but you do need a DVD to rip movies, I think. unless you just save YouTube movies.

if you have a camera that records on DVDs, you can always dub it off your TV screen. the sound quality may be off depending on the camera and the room. you need to cover up all windows so you don't get light reflections on the screen in the video, possibly even turn off the lights. then you need to get the camera level with the TV and get it either close enough or zoomed in enough to avoid showing anything outside the screen. and you need to make sure the volume is loud enough for the camera to pick it up well.